Sucker-rod coupling



Y W. H. DOW-NING,

SUGKBR ROD COUPLING.

Patented Mat. 5, 1895.

m o J A i 2 a a 1 W .1 QJ W iii 5 I] V UNITED STATES PATENT Darren.

WILLIAM H. DOWNING, OF GOODELL, PENNSYLVANIA.

SUCKER-ROD COUPLING.

SPECIFICATION forming part of Letters Patent No. 535,278, dated March 5,1895.

Application filed June 21,1894. Serial No. 516,296. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM H. DoWNINo, of Goodell, in the county ofMcKean and State of Pennsylvania, have invented certain new and usefulImprovements in Sucker-Rod Couplings; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomakeand use it, reference being had to the accompanying drawings, whichform part of this specification.

My invention relates to an improved sucker rod coupling; and the objectof the same is to provide a coupling which will make the sucker rodquickly and easily detachable thus simplifying the arrangement andavoiding the tedious screwing and unscrewing ineident to the couplingsnow in general use.

The invention consists in the novel features of construction hereinafterfully described and claimed and illustrated in the accompanyingdrawings, in which Figure 1 is a perspective view of my improvedcoupling with the parts detached. Fig. 2 is an elevation of the samewhen coupled. Fig. 3 is a vertical sectional view of Fig. 2.

A designates the section of the coupling which is secured to theelevator and which is hollowed at its lower end as shown at A, andextended vertically from opposite sides of said openings are metalprojections B having oppositely extended horizontal flanges B'onopposite sides as shown.

0 is the lower section of the coupling having the projected core D whichis adapted to fit recess A and upon opposite sides of this core are thesegmental projections E having the oppositely arranged flanges E, andthe said projections B and E are concentric with the socket and core Drespectively. The projections E along with the flanges E are adapted topassupward between the projections B and flanges B, and when thesections of the coupling are moved far enough together they are turnedso as to bring the flanges of the upper section beneath the flanges ofthe lower section thus leaving longitudinal spaces between the verticaledges of extensions B and D? A continuation of these recesses. is formedin section A and confined therein are the vertical movable bolts F whichare adapted to be moved downward in the said spaces thus holding thesections locked together. The bolts are bowed outward slightly inlongitudinal directions and being held in position by pins G which passthereover it will be seen that the bowed portionrof the bolts pressingoutward against the pins will serve to clamp and hold the bolts in anyposition in which they may be moved. They are thus prevented from movingfrom the looking position. It will be observed by referring to Fig. 2that the meeting or bearing surfaces of the flanges on the upper andlower couplingsections are inclined upward slightly in the direction inwhich the device is moved when uncoupled for the purpose of affording aslight turning strainagainstthe bolt so as to prevent any possiblewithdrawal of the latter while the rod with the coupling is inoperation.

A coupling constructed as herein shown and described is very simple andeasily and quickly adjusted to position thus avoiding the tediousoperation of screwing and unscrewing which is incident to the use of theordinary coupler.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

l. A coupler for sucker rods, a coupler section having the separatedlongitudinal projections E which are formed with the overhanging flangesE the other coupler section having the projections B flangedat B, thelast named flanged projections being adapted to pass between the flangedprojections E and interlock bya partial turn, thus leaving verticalspaces between projections E and B, andthe bolts movable vertically tofill said space to prevent the sections from turning backward anduncoupling, substantially as shown and described.

2. An improved coupling comprising coup ler sections having longitudinalprojections at their ends, the projections being straight on one sideand flanged on their opposite sides, the flanged sides of theprojections being brought together and interlocked by turning,longitudinal channels in one section, and bolts movable therefrom in thespaces between the straight edges of the projections of the respectivesections, substantially a shown and described. I I 10 In testimonywhereof I affix my signature in presence of two witnesses.

WVILLIAM H. DOWNING.

\Vitnesses:

JAMES GEORGE, L. L. 'MITCHELL.

